Quite so. Mythicism has gained influence because it is a political statement about the dangers of religious belief, not on the basis of its intellectual or scholarly merit. Atrocities make bad laws, and they make bad doctrines too.
Yes, hence the comparison with creationism, which also attacks the academy, not for scientific reasons, but ideological ones. Of course, it's possible that some mythicists are not motivated by anti-Christian sentiment, but it's striking how many seem to exude it. I think Tim O'Neill refers to it as a historical illiteracy among some atheists, (but not all). But then historical illiteracy is probably very wide-spread.