No, real conservatives will not defend someone threatening to desecrate the Eucharist as free speech. Maybe an ACLU member would, but not a conservative. I might disagree with the Baptist faith (for example), but I would never defend someone invading their house of worship and desecrating it, especially as an act of "free speech". Morally what the guy is doing is wrong. That doesn't make it illegal. And there are a social conservatives and fiscal conservatives.
Remember this line? "I may not agree with what you say but I will defend your right to say it to the death."
Let's step back and review the facts. A huy stole a host. The Cathlolic legue criticized him. The police were never involved.
Myers was angry at the Catholic League for criticizing the student
It seems to me the only free speech being attacked is that of the Catholic League.