Agreed.
That's too bad for you. There is some good advice there.
It is a common attitude amongst new players -in every game- to start calling things broken, unbalanced, or overpowered the moment they find the slightest difficulty on their learning curves.
Eeach paragraph of yours drips with condescension. I don't like your atitude.
I suggest you go back and look at it objectively.
While people can certainly be condescending here, this post is at the rather mild end of it. It's better to not have long toes.
Fourthing what everyone else said. The only part that could remotely be considered condescending was the line about the "common attitude amongst new players in every game," but that's a small nit.
When use A-Wings that have low attack values other than Focus-token using Proton Rockets, backed by a Focus-using Kyle Katarn, then of course the Focus-negating Carnor Jax is going to feel strong. In the rock-paper-scissors of X-Wing, you're deliberately flying paper into his scissors.
Try Roark with an Ion Turret, for starters. Carnor won't want to get within range 2 of him, as an Ioned Interceptor is usually easy pickings the next turn. Roark's ability to boost an attacker to PS12 will also help you deal with Phantoms, though it won't help you with the arc-dodging. You could also try using pilots like Luke or Wedge, as Echo will lose the advantage of shooting first, and/or lose the advantage of knowing where to safely decloak.