Sorry, but you helped.

Well then, you're welcome. Because if I "helped" Trump get elected, then by the exact same logic I "helped" Biden get elected, and you can rest assured that I will be "helping" your favorite genocidal warmonger next time.

You decided that your morality was more important than your efficacy.

Yes, obviously. That's what having morals means. Do you believe it is morally wrong to have morals? Because you might want to examine the very obvious logical contradiction there.

One day you will grow up and regret your decisions like I did.

If I knew that I would wake up tomorrow thinking that, I would kill myself tonight, without hesitation.

One day, perhaps, you will grow up and realize the true extent of what you're supporting. It's only possible for you to think the way you do because of your blissful ignorance of what your people are doing on the other side of the wall.