Personally I'd rather we didn't have red on our kits/stadium etc. I wouldn't lose any sleep over it like, but it's just a brand identity thing apart from anything. A bit like the liver bird, I actually think the whole 'it was ours first' thing is a bit petty and small time. Everyone associates red and the liver bird with Liverpool, that's fine, they can have them and we have blue and the tower.
They've had blue on their kits, they don't kick up a fuss, it is just a bit small time as you said.
Long before we had this tense rivalry, people stood on the Kop together, would go watch the other team when the other was away, it was part of tradition. Personally, i can't stand them, but it's a colour.
You're right though, they don't own the name "Liverpool", they don't own the Liverbirds and they don't own the colour red. If we came traipsing out in a full red kit, then yes, i'd be fuming, but a tip to our history which existed 16 years before they even wore red.
Just backwards, enjoy a nice touch by our manufacturer, who actually cares about the club.