There is no other reasonable way to interpret Kohn’s tweet:

She didn’t explicitly call conservatives racist, but everyone knows what she was getting at:

In fact, some conservatives do worry about the security of the U.S.-Canada border. But sane people understand that not all our borders deserve equal attention at the moment.

He didn’t remove her from that list until now?

Update:

Yeah, right.

Related:

Sally Kohn: I totally didn’t say that conservatives who ignore the US-Canada border are racist