Nah they are “illegal migrants”. There are places you can go and some you can’t and that applies to everyone. There’s a wide gap between “compassion” and “free for all anything goes”.

It’s not. If you accept that :

• Taxing at 0% brings no tax revenue
• Taxing at 100% also brings no tax revenue

Then you accept that between those two extremes there’s a tax optimum that for a given rate gives the most tax revenue. This is the Laffer curve.