I won't say that it can't happen in this country, but this letter reeks of hysteria: Jewish children being sent off to England to avoid concentration camps; nuns and priests being sent off to concentration camps. What concentration camps? What dictator?
President Trump, though he has significant discretionary power, is "merely" the chief administrator of one of the three co-equal branches of our national government. If you don't like what he's doing write letters, call, tweet, email him and your representatives. Mobilize your like-minded neighbors and friends to get out the vote in 2018 to reclaim Congress.
Blathering hysteria is not likely to help your cause.