Is Shakespeare saying cruelty is like a snowball launched from a hill

as an afterthought

Is Shakespeare saying cruelty is like a snowball launched from a hill it just gets bigger and bigger and sweeps up every one and all will feel pain in the end, so don't start such a snowball.

the moors kill Titus's sons, he kills the queens son as a sacrifice, she gets her sons to defile his daughter and gets his sons killed and cons him out of his hand, he then kills her sons and gets her to eat them, etc etc it's just a horrible accumilation of cruelty, and I think the close ups of his Grandson are because with a childs innocense he realises that this will just have no end and all will suffer and it's just so pointless.

A peaceful soloution is always a better soloution as when you take someones loved one (ie the queens son) you bring out the evil in them, they have nothing to lose anymore and so they become hard and able to do despicable things, treat people as you would like to be treated and make the world a better place by not unleashing all this evil I think Shakespeare may have been saying.