Quick google search revealed about 7 years of decrease in lifespan on average with people who have hypertension, but it also doesn't discriminate between fitnes

Quick google search revealed about 7 years of decrease in lifespan on average with people who have hypertension, but it also doesn't discriminate between fitness levels and other factors (whether it's treated or not, say), as you say. Anyway, I thought OP had some harder evidence about their own claim, but it seems to be a guesstimate.