Go ahead - name us one US-born highly successful entrepreneur who renounced his citizenship or did some 5 flag bullshit for the SOLE purpose of saving on taxes...
That's fine. So why not just say you think you would be happier living somewhere else? Don't make it about taxes though. Again, I think you'd be hard-pressed to find many successful US-born entrepreneurs or high net worth individuals who have given up their US citizenship and moved abroad just to save on taxes.
Why do you need to go offshore to have lawsuit protection? The key is to own nothing, but control everything. And have a good umbrella policy! But if you own nothing no one will waste their time suing you. You don't need to do a bunch of complicated and expensive offshore stuff to make yourself "lawsuit proof"...
Because many countries out there offer a better tax situation than living in the US! (Or staying a US citizen.)