Accusing a federal judge of being unable to discharge his duties because he's Hispanic, and a member of the Hispanic Bar Association (one of hundreds of such affinity lawyers groups), manifestly is racist, as even Republican Speaker of the House Paul Ryan was forced to admit.
Insofar as Islam, it is a sprawling religion consisting of 2.2 billion adherents, with many sub-ideologies. If you yourself have not apologized for the "Klan" (who call themselves Christian and "light" crosses as emblems of their WASP faith), then any broad brush attack on Muslims over the actions of al-Qaeda and al-Qaeda of Iraq (a.k.a. ISIS) is pure bigotry.
Bashing illegal immigration, while conspicuously being entirely unconcerned that Trump's own wife Melaina was clearly an illegal immigrant, is again not only a sign of hypocrisy, but one of racism. Because there is no legal difference between the two situations. Merely a skin color one.
The reason why people continue to call Trump racist is because he is. The reason why people call his supporters racist, is because there is hard evidence of racist attitudes taken from surveys of them.
The idea that a racist is going to suddenly vote for the party who opposes racism, instead of the Republican party that it has been proven benefits from it, if only people wouldn't point out their racism, is absurd.
Is that enough research for you?