To oversimplify a little, there are two kinds of people:
1: There are the "zero sum game" people. I think they are sometimes called "conservatives". As they see it, if you give entitlements to someone, then there is less left for them. Out of kindness, they might support very limited entitlements for a short term to help only the severely needy. But they will always be critical of entitlements, because they worry that what is given to others implies less for them
2: There are the "rising tides lift all boats" people. I think they are sometimes called "liberals". As they see it, a reasonable program of entitlements makes for a better society, and everyone benefits from that.
I think you oversimplified a little too much. Let me simplify in a different direction and see how you like it.
There are those who, out of habit or disposition, feel they should work for a living and pay their own way.
There are also those who think someone else should support them. "You owes me!" is a good description for this type. The reasons for the "owes" are many and often meaningless.
As I have quoted in my signature, "If I am entitled to something, someone else is obliged to pay"--Jerry Pournelle.
Those who are "obliged to pay" might, if the burden placed on them is too great, just give up and join the other side. "Going Galt" is one phrase that describes it.
Another way of looking at it is: "The problem with socialism is that eventually you run out of other people's money [to spend]." That was from Margaret Thatcher.
As you noted above, "rising tides lift all boats." But falling tides lower all boats and pretty soon they are all sitting in the mud. If you look at the societies who tried to practice extreme forms of socialism or communism, you'll see this. North Korea is a prime example. Just compare with South Korea. Compare East and West Germany.
You can only bleed the productive to give to the unproductive to a certain point, and then the productive will say "Hell with it."
This is a lesson communists, the more extreme socialists, and other lefties simply can't learn. When they have run societies they have increasingly turned to authoritarian governments in an attempt to get more production from those who could produce, while removing all the incentives for them to do so. Didn't work, and never will.
So, your #1 above is totally wrong. It is not "what is given to others implies less for them" but "if you take virtually all I have, why should I keep working?" It is hard to change human nature, although lefties of all stripes have been trying for decades--without success.
And, your #2 would be valid if greedy leftists would quit trying to get more from the "golden goose," and work with human nature rather than against it. The progressive income tax is one example. If the tax rate was reduced as people earned more, almost everyone would earn more! The total tax base would be increased overall. People would work to have more income, rather than less. This is an entirely different way of looking at things, and unfortunately lefties simply can't see it.
If you want less of something, just tax it. Lefties should learn from this, but they haven't yet and I doubt they ever will.
So, go ahead and flame. Flames from lefties are as meaningless as the collective outrage they hurl at anyone who disagrees with them.
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.
Belief gets in the way of learning--Robert A. Heinlein
How can I possibly put a new idea into your heads, if I do not first remove your delusions?--Robert A. Heinlein
It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers
If I am entitled to something, someone else is obliged to pay--Jerry Pournelle
If a religion's teachings are true, then it should have nothing to fear from science...--dwise1
"Multiculturalism" does not include the American culture. That is what it is against.