"From what I've seen, many of these so-called 'liberals', are not 'accomplishers' of anything much of value"

So...you have a list of who HAS accomplished something of value, along with their political affiliations? Maybe the Noble prize winners?

*shrug*...ok, a slogan. I don't necessarily agree that 'love' is that historically relevant as a driving force, though it is a very nice sentiment.
Greed & power and sex have motivated more folks than love, I'd guess...but I don't have any learned studies about it to quote.