Priest-arranged marriages?!? Actually this is done by family members lining up eligible candidates with the voluntary collaboration of the principles.
Priests using the confessional to try to impose parental will on pain of sin - to manipulate who marries whom.
Pastors with the courage to support the principle of arraigned marriage from the pulpit are responsible and truthful, not necessarily cultish.
"the principle of arranged marriage" - you make it sound as though it is a Christian principle. This is absurd, and part of the problem. The problem of making up the religion as you go along, which is what the SSPX often does, often with no consistency whatsoever from one year to the next.
What is inherently wrong about priest-led schools conducting marching drills for boys?
It's not a priests job to make anyone's son march.
They need to stick to their vocation.
And stop pretending to be shrinks, military officers, matchmakers, etc.