A new budget by a large and influential group of House Republicans calls for raising the Social Security retirement age for future retirees and restructuring Medicare.
For Social Security, the budget endorses "modest adjustments to the retirement age for future retirees to account for increases in life expectancy." It calls for lowering benefits for the highest-earning beneficiaries. And it emphasizes that those ideas are not designed to take effect immediately: "The RSC Budget does not cut or delay retirement benefits for any senior in or near retirement."
Biden has blasted Republican proposals for the retirement programs, promising that he will not cut benefits and instead proposing in his recent White House budget to cover the future shortfall by raising taxes on upper earners.
The problem with this is that living longer isn't really the same as "has extra productive years of labor". Not dying of cancer at age 75 is living longer, but you're still old. Even desk jockeys are slowing down in their 60s, let alone people performing physical labor. They've given their best years to the economy and deserve to have a little time to enjoy their life before they're too infirm to do anything.