Well you basically answer yourself in your last sentence - neither French nor Italian cuisine is aiming for similar taste experience as some taco stand. Since you are so mightily experienced, you for sure know that french cuisine is generally regarded as best in the world due to many reasons. That's a general comparison obviously, so picking some specific places here & there the comparison can end up differently.

You can also try to compare it to indian cuisine for example, which is fabulous for many people (including me) and reasons, but an attempt to compare those is an indication that you don't really have a clue about whole haute-cuisine experience. And lets not forget you considered some of British cuisine as something to compared to, which is... a bit clueless, isn't it.

But its good that you enjoy tacos, that's clearly more your type of experience.