2. The tariffs are producing revenue for the Federal government. Hundreds of billions per year. To remove the tariffs arbitrarily in the future, a President would need to assume the political risk of increasing the national deficit.
3. Trump imposed tarriffs on his first term that Biden did not reverse. Even if the next President is a Democrat it's more likely than not that the trade deals remain in place.
4. A strong contender for the next president is the current vice president, JD Vance, who would be highly unlikely to reverse.