In the totally free (in the sense of liberty), trustless environment of crypto, what you call "attacks" is nothing else but exerting one's liberty in the frame of a strategy to overwhelm others (which is the principal usage of unconstrained liberty). In a full liberty system there's only one right: the right of the strongest (smartest/fittest/fastest/wealthiest...).
So do you think violence is ok? Just because a thug has the liberty to do violence?
In the online space, agression is literally no different than in the physical world.
If you have 200
BTC worth of assets, and somebody hacks your PC, I bet you would be upset, and would not tolerate that, however that is the "freedom of the hacker to steal" according to your mindset.
So the same way, if some fucker is DDOS-ing some node, or some miner is engaged in double spend, or somebody is filling the network with low transactions, that also causes financial harm to people, in one way or the other.
So why should we be ok with that? It's no different than physical agression, which we know to be immoral.
In a full liberty system there's only one right: the right of the strongest (smartest/fittest/fastest/wealthiest...).
So what are you doing here, go back to your centralized banking system currency, which is created by the mightiest financial institutions.
You would definitely love that.