this isn’t a response to conditions. Because if it were the people voting for Trump should realize he is not now nor ever going to help them economically.

I’m not sure what you’re getting at here. Just because a response to changing conditions is irrational doesn’t mean it is not a response to changing conditions. It seems like you’re arguing that Trump supporters give their support to Trump because they think he will ruin the economy, but that’s obviously not the case. One of the Trump camp’s main arguments is his economic aptitude (whether or not you believe that is complete bullshit). The undeniable reality is that Trump supporters truly believe he is going to save the economy even if you (perhaps rightly) think tariffs are going to cause massive damage.