"If [sic] should concern everyone because hundreds of innocent people are being killed and property destroyed, simply for not being Israeli."
An utterly stupid comment, although given the time it was made, and on past form, I suspect a lot of drink had been had.
Israel, like any nation, has a perfect right, and indeed a duty, to protect itself and its citizens.
The loss of lives is tragic, but Hamas bear an awful lot of responsibility given they cowardly and disgustingly use civilian shields, although from their disgusting POV it seems to work given the TV pictures induce the gullible into thinking it's all Israel's fault, although the bias BBC reporting helps on this front as well.