The Laffer Curve is a massively flawed model extrapolation. It makes huge assumptions about how the economy would reorganise itself as you move away from current taxation levels, and we know these are not true. For example, you couldn't have a modern industrial society with 0% taxation. Either society would collapse and burn or, more than likely, alternative governance structures funded by public resource pooling would appear meaning you're not at 0% taxation. This would likely happen long before you got to 0%, so that part of the curve is meaningless. Similar massive assumptions are made at the 100% end. So all the Laffer curve is saying is that, within the current economic context, if you move tax rates around, it might be that you don't actually increase revenues - all other things being equal - to which any intelligent person would say 'well duh'.
It then totally ignores that you can move the localised Laffer Curve around through policy changes - e.g. closing tax loopholes or negotiating international tax agreements. So now you've got this little bit of a Laffer Curve, which you can move around anyway through policy changes, and the whole theory becomes pointless.
It's basically massively simplifying a system, then taking that simplified model to the extreme and saying 'haha, this is why you shouldn't make me pay more tax'. There are way better arguments for keeping taxes low than that.