Also, there is serious evidence that this one is anthropocenic.
And finally, even if it wasn’t, our societies will be affected so much that it is a good investment to work on preventing it.
And finally - Earth had it’s periods when it had o2 contents so low that humans wouldn’t survive, ditto with co2 levels being so high at times that we would feel like in an extremely stuffy room at all times.
In the Baltic, it did happen rapidly, and the lake level variously fell and rose as glaciers melted and flowed and moraines dammed the narrow strait that separates it from the North Sea.
From 14,000 years ago to 6,500 years ago (pre-human), the sea level rose 110 meters. That's 14mm/yr.
From 1880-now (industrial era), the sea level rose ~0.2 meters. Thats 1.4mm/year, an order of magnitude less.
From 2006-2014 ("things are really bad!" era), the sea level rose 3.6mm/yr. About a quarter of how quickly they rose before there was any human intervention at all, yet people will still insist that this rise is due to human behavior.
Ancient sea level rise was so catastrophic to human proto-civilization that to this day the most common cross-cultural ancient mythological remnant is the flood myth: https://en.wikipedia.org/wiki/Flood_myth . A sea level rise of even a fraction of that would be similarly catastrophic.
Meanwhile, your argument is a non sequitur. Arguing that the sea level has previously risen faster without human intervention provides absolutely no argument against the fact that modern sea level rise is a result of human activity. We have evidence that the temperature is rising faster now than it has in the past 20,000 years (https://xkcd.com/1732/), curiously coinciding with the advent of the industrial revolution, and we understand well the mechanisms that have caused it and are still causing it.
You're afraid of change. That's understandable. I empathize. Hiding from the truth won't help.
(also note from this data, that the earth was warmer in the first half of the Holocene, we have been trending lower despite the recent mild increases)
Secondly, no we do not have evidence that it's rising faster than any time in the past 20K years. The end of Younger Dryas was a 20C increase in less than a couple hundred centuries.
Also, there is serious evidence that this one is anthropocenic.
And finally, even if it wasn’t, our societies will be affected so much that it is a good investment to work on preventing it.
And finally - Earth had it’s periods when it had o2 contents so low that humans wouldn’t survive, ditto with co2 levels being so high at times that we would feel like in an extremely stuffy room at all times.