No they don't vote against the "will of the people" this narrative is bankrupt, 49 vs 52 does not give a "will of the people" and the constant use of it is disingenuous. Especially as the will of the leave vote is so fragmented, some voted to get rid of Cameron, some voted to stop immigration, some voted because they want to go back to pounds and ounces, some voted because they thought that £350 million was going to be spent on the NHS. Only one of these things has happened so far, and the liklihood of the rest of them is low.
Ignoring the will of the brexit camp could be done quite easily, because elected representatives could legitimately claim that the leave vote deliberately misled the electorate, and have back tracked since.
We were very rarely in a one against 27 vote, in fact, the % of times we voted against the EU increased quite a lot under the Cameron administration, many of the things that we voted against were reforms to the finance sector and bankers bonuses. If you look at the outcomes, the UK gets policy from the EU that is in line with pre stated national policies on about 95% percent of occasions.
You have some weird idea that the EU is some dark and scary SPECTRE type organisation, you don't seem to get that national governments agree for the EU to have the right to regulate in the areas that it does.
We have exemption from ever closer union, protected by international law