i like being with other random players just not player killers who kill you for no reason or tank griefers.
This is the crux of the whole issue. There is no need for people to make it complicated. You can't join a public lobby without getting killed by some asshole for no reason.
Now, here is the unfortunate math that explains why every lobby has at least one sh*tbag who will kill you just for being a white dot:
-- Probability of a given player being a white dot stalking / killing sh*tbag: 75% (i.e., 3/4 of all players) or another way to say it is that the probability of any given player not killing me on sight is 25% or 0.25. We know this is true from long GTA0 experience. Actually, we would be fortunate if the situation were this good.
-- Number of players in full public lobby besides me: 15
-- Probability of all players in the lobby not killing me = 0.25^15 = 9.31x10^-10 = 0.000000000931
-- Therefore, the probability of being in a full public lobby and being killed by an asshole = 1 - 0.000000000931 = 0.999999999069 = 99.9999999069%
This is the mathematical reason why GTA0 free mode sucks.