Huge numbers of Venezuelans would want to leave Venezuela and immigrate to the US if they legally could, regardless of anything Trump does or doesn't do, becaus

Huge numbers of Venezuelans would want to leave Venezuela and immigrate to the US if they legally could, regardless of anything Trump does or doesn't do, because the US is a much richer and better-run country than Venezuela is. Working illegally for poor wages in the US is a better deal for many people than physically being in Venezuela. There's also nothing special about Venezuela in this respect, much of the world is so much poorer and badly run than the US that many people from many different places would prefer to live in the US compared to their own countries.