No where in my comment did I say it was not capable of combat at all, but it certainly has not lived up to the billed goal of the program nor will be be effective in its billed role of "Fighter jet to replace all Fighter Jets"
It is mediocre in all roles for which was designed to replace. It is not as good at dog-fighting as its counter parts, it is not as good at close air support as its counter parts, it does not have as good of stealth has it counter parts.
It is a 1 Trillion+ Dollar "ok" fighter jet, which is not what we were sold