Are Democrats Trapped by the Immigration Issue?

At the moment it seems like nothing can stop the Democratic nominee from beating Trump and nothing can stop Biden from being the democratic nominee. But what are they going to do about immigration? Trump has done two things, made the issue impossible to ignore and also utterly toxic to rational discussion. There are only good people who want de facto open borders and evil people. But any rational assessment of the situation leads to the inevitable conclusion that some restrictions are needed, and not only that, but that the majority of the country wants greater restrictions. What's a Democrat to do? Are they trapped?