So what? There are High-Church Anglicans who vehemently oppose this stuff. I see this kind of thing quite a bit with modern Catholic apologists.( taking joy in and mocking the bad behavior of other Christians) I hate to say this, but the Church( in its current state) is in no place to criticize or mock anyone. Let's straighten the Church out first. When we have our heads on straight, we can help others get their heads on straight as well.

Fr. Reginald Garrigou-Lagrange

We know nothing more reprehensible than the nambypambyism babbled by sentimental Catholics about the good faith of "our separated brethren." There may be persons in good faith amongst Protestants, but, if so, they do not lack opportunities of showing it, and of coming out from the Babylon in which they have been reared. Men cannot be saved without Christ, for there is no other name given under heaven whereby they can be saved. Without faith it is impossible to please God, and he that cometh to God must believe that he is, and is the remunerator of them that seek him ; and how can those be saved by Christ who adhere to the party that rejects him and makes war on him ; and how can they have faith or believe in God who commune with those who resolve all faith, all belief, all truth indeed, into a mere opinion, or an inward sentiment, varying with each individual?

If Catholicity is Christian, if reason is authoritative in its own province, nothing is more certain than that Protestantism is in no sense Christian, and that persons living and dying Protestants cannot be saved. It is a stultification of common sense to maintain the contrary, and besides, it practically neutralizes all our efforts to convert Protestants, and to bring them to a living and saving faith in Christ. We know what theologians say of invincible ignorance, and we do not contradict them. Invincible ignorance excuses from sin in that whereof one is invincibly ignorant; but it gives no faith, no virtue ; and without faith, without positive virtue, no man can be saved. The man who holds implicitly the Catholic faith, but errs through invincible ignorance with regard to some of its consectaria, and even dogmas, may be saved ; but how can a man be said to hold implicitly the Catholic faith, who holds nothing, or rejects every principle, that implies it? It is not safe to apply to Protestants, who really deny everything catholic, a rule that is very just when applied to sincere but ignorant Catholics, or Catholics that err through inculpable ignorance. Protestantism does not stand on the footing of ordinary heterodoxy ; it is no more Christian than was Greek and Roman paganism.

2.

(. . .)

Finally some of these misguided people attempt to persuade themselves and others that men are not saved only in the Catholic religion, but that even heretics may attain eternal life.

That is one view. The view of Fr. Lagrange and Mgsr. Fenton is just as valid.

You'd do better to quote Fr. Michael Muller.( he takes a similar view, but even he argues that Protestants can be saved in ignorance )

but even he says that one can be saved outside the Church, if through no fault of their own they have had no opportunity to enter it.

https://stevensperay.wordpress.com/2012/12/04/fr-michael-muller-c-s-s-r-taught-the-doctrine-of-baptism-of-desire/
"Q. What are we to think of the salvation of those who are out of the pale of the Church without any fault of theirs, and who never had any opportunity of knowing better?
A. Their inculpable ignorance will not save them; but if they fear God and live up to their conscience, God, in His infinite mercy, will furnish them with the necessary means of salvation, even so as to send, if needed, an angel to instruct them in the Catholic faith, rather than let them perish through inculpable ignorance.
Q. Is it then right for us to say that one who was not received into the Church before his death, is damned?
A. No.
Q. Why not?
A. Because we cannot know for certain what takes place between God and the soul at the awful moment of death.
Q. What do you mean by this?
A. I mean that God, in His infinite mercy, may enlighten, at the hour of death, one who is not yet a Catholic, so that he may see the truth of the Catholic faith, be truly sorry for his sins, and sincerely desire to die a good Catholic.
Q. What do we say of those who receive such an extraordinary grace, and die in this manner?
A. We say of them that they die united, at least, to the soul of the Catholic Church, and are saved.
Q. What, then, awaits all those who are out of the Catholic Church, and die without having received such an extraordinary grace at the hour of death?
A. Eternal damnation."

So Muller certainly takes a more hardline view than Garrigou/Fenton( and myself) but even he says that one can be saved outside the Church, if through no fault of their own they have had no opportunity to enter it. The key difference between Muller and Brownson is that Muller is a priest/theologian, and a respectable scholar. He doesn't need to be vitriolic to get his point across