They are not of good will when they eat meat on Fridays of Lent. Oh, and this goes for Catholics as well as Protestants -- whoever the shoe fits.
First of all, it was much more common (though not universal) to give up meat on Fridays of Lent at least, as recently as the 80's and 90's.
(as an aside -- when I was in public school, "Spring Break" always coincided with Holy Week and Easter. It no longer does.)
Second of all, I bet most Protestants wouldn't go out to a nice sit down restaurant to celebrate the death of a dear pet they had for years. They'd say "I'm not hungry." due to sadness. But they have no problem feasting on Good Friday and the other Fridays of Lent. What can I conclude? That there is no real love in their heart for Jesus Christ, who underwent a bitter Passion and died in agony on the Cross to redeem mankind. And furthermore, that these fake Christians have more REAL love for their pets than for Jesus.
Thirdly, liberal dupes who believe in Global Warming are more to be admired for their honesty and sincerity, because they believe giving up meat FOREVER will create a better world for their children (helping to stave off Global Warming, via less greenhouse gasses). But they practice what they preach! They give up meat COMPLETELY because of a lie they've been told (that they believe in), while Christians who claim to believe in God, Jesus Christ, and the Redemption won't give up their hamburger ONCE A WEEK to make a real demonstration of love for God, Who gave them so much. They won't even do this during Lent, the season when we're supposed to give some thought to what Jesus suffered for us!
Fourthly, you can't point to "oh, it's no longer obligatory" and all that, because none of these Friday-in-Lent meat-eaters are doing ANYTHING ELSE in place of the old Friday abstinence. They have completely cut out penance, as if they have no need of it.
They are living for this world, living in pleasure like anyone else, not inconveniencing themselves at all for their religion. They want a convenient, easy religion, or none at all. But they prefer to have it both ways -- to have all the "nice internal feelings" religion can provide, while having all the pleasures of the pagan and the worldling. A pretty sweet deal -- until you die.