You admit paraconsistent logic and dialetheism exist, and some Eastern philosophies reject the excluded middle in religious contexts. So when non-contradiction is used against “all religions are true,” can’t a Buddhist simply decline the premise?

A sophisticated Buddhist or Hindu interlocutor might make this move, and it deserves an answer. Dialetheists themselves hold that true contradictions are rare and isolated (the liar paradox, certain boundary cases), and no dialetheist claims that ultimate reality is personal and ultimate reality is impersonal can both be true. Anyone who does claim that has abandoned the possibility of saying anything false about religion, including the claim that Christianity is wrong. The move buys nothing for the pluralist that it does not also cost.