Remember, right wing people are just misguided left wing people. They have the desire and energy to improve their lives, but are going about it a stupid way.
They think that they can improve their lives by taking things from poorer people. Which is a reasonable thought. But it is wrong. If the immigrants are driven away, these protesters will become the poorest people, for others to take things from.
The only way to improve your lives is by improving everyone's lives uniformly, through left wing policies. This isn't just virtuous. It's virtuous only because it's economically sound.