Many intelligent people voted brexit as well for various reasons there are two sides to it
Yes, many intelligent people were taken in by the various lies that were told.
That doesn't make them thick...
But it is possible to be intelligent and incorrect.
We've all sat and watch all the touted benefits of Brexit be proven false one after another. There's no point in pretending otherwise, lest we live in a fantasy world.
If you're asking for a point of view to be respected that has been proven to be damaging and based on lies, without a hint of redeeming value attached then you're barking up the wrong tree.
Yes, Brexit voters are no less intelligent than anyone else. But I couldn't care less about relative intelligence. I care about whether it's a good decision or not.
The argument about whether Brexit supporters are intelligent or stupid is a massive irrelevance.