They're not only fueled by racism and hate. They're also fueled by Fear. Examine most of what they profess, their policy decisions and trends, and you can see they are deeply afraid of the world and of anyone even remotely not like them.
Look at their obsession with guns and gun culture. They are convinced that everyone "Other" will absolutely harm them if given the chance. Be it neighbors or strangers, they're sure the only thing keeping someone from hurting them is the lack of opportunity to do so.
They're afraid that they'll lose their jobs. It doesn't even bother them to call immigrants lazy, and then in the same breath exclaim that some lazy undocumented mexican is going to steal their job.
They're afraid of increasing numbers of immigrants because they're afraid that they'll become the minority, and they know damn well how minorities are treated, and it scares the shit out of them.
They're afraid of LGBTQ+ people too. They laugh and mock the idea that it's "homophobia or transphobia saying they're not afraid, but then they're afraid someone they're not attracted to will flirt with them, or their kids will be inducted into the "LGBTQ Mafia." It's not just hate, they genuinely think they are the victims and that the only thing preserving their way of life is striking first.
They are absolutely hate filled racists, for sure, but deep inside they're fucking scared and that makes them lash out.