Fun fact, people suffering from loss of quality of life issues don't lack motivation. Lots of these people are in great pain, constantly, every day. My mother had a hip issue where the pain could instantly shoot up so bad she couldn't move (from just the normal, constant, almost in tears pain). She couldn't risk going somewhere to exercise, she would be stuck. She couldn't risk exercising on days where she needed to work the next day. Some days she would break down crying going to the grocery store because she had gotten stuck there the previous time she went.

A LOT of quiet unassuming people are INSPIRINGLY motivated to push through INCREDIBLE pain and obstacles, every day. Many that prevent them from 'just exercising until life gets better'. It is bullshit to say they lack motivation/character/willpower.