Here in Flanders (Belgium) we also subsidy electric cars and while it doesn't exclude Tesla's, you will get a lot less than when you buy an electric car from another brand. And that mainly because they are cheaper.
I can say that with pretty high confidence it isn't about giving the upper hand to our none existing automobile industry, but prevent burning through the subsidy at a high rate.
Consumers who can afford >60.000€ cars are in most cases not the target group of these kind of subsidy programs.