pls do not promote this crap, just parroting WH. Do real research. Look up what the actual tariffs are, including the tariffs that the US was already imposing. And just because there may be a case for limited tariffs in strategic instances that's not what's happening here.
Let me help you a bit more with ur first baby steps. Look up "great depression smoot hawley tariffs"
Unless they are ridiculously wealthy + lazy they would not do this. If they've worked hard for their $ they don't give up thousands of $ per year. If you think savings accounts provide a competitive return, good luck to you. I guarantee that the vast majority of wealthy pensioners would not do this.