They never say what this sea level rise is and the rate of in crease.
This is a NOAA webpage which has looked at increments of 50 year sea level trends at many sites across the US. (and worldwide sites if you click around a little)
https://tidesandcurrents.noaa.gov/sltrends/sltrends_station.shtml?stnid=8723170
Click on the tab that says, Variation of 50-Year Relative Sea Level Trends you can look at different gauges around the country for different 50 year averages.
If you look at the trends in the New England locations it has actually varied below average and drifted back to baseline. Its all BS!