Exactly this ... Me and DH were on the bones of our arse for about 12-13 YEARS whilst raising 2 kids, and trying to fund constantly-rising mortgage rates, and high food prices, and all our bills etc, and suffering recessions. The mortgage rates were way higher than they are now at one time. And like you, we spent a number of years with all our income going into the bank on the 1st of the month, and everything coming out within 1 to 5 days - all insurances, bills, mortgage repayments etc. We were left with about £35 afterwards, then lived on the overdraft for the rest of the month.
Year after year, the overdraft increased, and so did the fees. The bank lent us money against the house, so we could do essential repairs to the house, and we had loan after loan, and they also shoved credit cards at us, 'helping' us to survive. We ended up being in shit loads of debt, and eventually no money to paint and decorate the house, let alone fucking fork out for repairs and maintenance. Because eventually the bank kept saying NO to any help for us. We hit a brick wall.
The kids did OK and had most of what they wanted (though they didn't ask for much) as we bought stuff on the credit card. We had nothing for ourselves. We eventually sold up and paid ALL our debts out of the equity, as we could no longer maintain the payments for everything, and we got a much smaller, cheaper place in a different town.
Like you, I am sick of people whingeing now. We have all been through it (us people over 50,) high mortgage rates, shit pay, shit jobs, loads of debt, and nothing left at the end of the first week after all our income went into the bank - let alone the end of the month! Never had a fucking PENNY in savings. As you said, people have had the luxury of super low interest rates on their mortgage, and many people maxed themselves out on it to buy a fancier/bigger house. Did they really imagine for a fleeting second that the interest rates wouldn't go up?!