Its not split just on this issue though is it, it goes beyond Brexit and onto issues such as climate change, immigration and human rights. The divisions are about deep seated values that people hold. As for voting, this has always been the case and what you say is not new. Turnout is low in local elections and clearly in a FPTP GE if you vote conservative in a strong Labour area your vote is worth nothing and vice versa. if you vote Green or UKIP or even LibDem even more pointless.