Except, of course, that exchange trades are an example of Layer 2 trades. I'm not making an argument, I'm answering your question. You asked what Layer 2 solutions existed for the other forks of Bitcoin, so for the sake of answering your explicit question...
Chicken Egg problem. What came first. The money or the bank. I do not respect your answer. Do you like XRP too ?
Lightning is replete with security tradeoffs. Worth it for some, intolerable for others.
Name one tradeoff worse than Layer 1.
Near-instant? Statistically. Amazing the things that work with five-nine's determinism when blocks are big enough to swallow all transactions generated.
Gobbledygook. Senseless.
BTC doesn't do this, with Lightning.
You are wrong. You try to be evil on Lightning, and counter party is fully rewarded and you lose everything. Incentive to play nice.
Still unanswered: How LN is going to help when Layer 1 is already clogged to the point of uselessness.
Hyperbole.