It's not just tourism. Economically, the US does not depend on the rest of the world nearly as much as any other developed country. Trade (exports and imports) as percentage of GDP is the lowest of all major economies, by far. This is not up for discussion it's a fact you must ground everything else in.
Having established that, you know the firm upper bound on economic (not cultural or political or podcast-topic-generating) impact that international tourism boycott will have on the US. Same for putting tariffs on US goods. If you ignore this, you'll be surprised by how little this matters in the end, economically. Conversely, if you keep yourself firmly grounded in reality you can still in fact be against these policies on different grounds - on the fact that over time their cumulative economic and non-economic effect will hurt, on the fact that a lot of the reasons for these policies are fanciful nationalist bullshit (no, manufacturing jobs aren't and won't be coming back). But don't expect us staying away from your country, or putting a tariff on your shitty cars or cucumbers or whatever, to make a difference. Why is that controversial?
