I am going to need some sort of citation for the idea that Europe has high corporate taxes. According to KPMG the EU average is lower than the current US corporate tax rate. Furthermore, setting it at 37% is 3% lower than the US tax rate was last year. I don't really see any downside to doing this. It's not like companies are not going to do business in Europe, it's waaay to attractive a market.
Also, "spending money on immigrants" sounds like it's just being given to immigrants, the money is specifically to countries cope with the cost that is there already. It might fuel right wing nationalists, but that seems to happen anyway, while they are busy doing their thing, it would be nice if the sensible people tried to tackle the issues at hand.