It doesn't hurt "Europe"(its EU actually which is not the same thing) at all. And there's no attack on US tech companies.
You say it like its a sure thing when it certainly isn't, not to mention that's not what EU is doing anyway.
Also EU's problem isn't really tech competitiveness but independence although that's a problem everybody has. We live in a globalized world after all.
The biggest success a startup can have these days is to become relevant enough in order to be bought by a big tech company. Looking at the reality, EU's regulatory actions aren't really bad for the industry or users(and that's what really matters, not Apple's sentiments), it's just that apple(like any company) will have to do something it doesn't want, like that's such a huge incredible problem a lot of users here can't get passed.
Funny thing I constantly see these suggestions that Apple has so much cash, Apple should buy Samsung, Google, Microsoft Amazon, throw money left and right etc, but when it comes to obeying the law Apple has no money to waste, that's quite weird. Also there's no problem on this site when Apple has to obey the Chinese Government for example.
EU will always be an essential part of the world culture, economy and politics and US has a lot to learn from the EU society in general. Regulating companies that make computers and gadgets certainly won't change that in any way or make EU irrelevant in any way.