Given the uptick in racist incidents involving poles no.
- - - Updated - - -
I'd say a straw poll of people I discussed with it came up with about 60% of the "I'm not a racist BUT..." camp.
There were arguments to be made for leaving the EU, but by and large they weren't.
It became apparent after the Leave campaign won that their leaders had no real idea what to do, so I'm not sure they actually knew what the positives might be.