My point is EVERYONE should pay their fair share
These two comments seems to have some inconsistency. Ivinsfan has a point.As the ACA system stands today, folks who can control their MAGI can gain more in subsidies to offset their MONTHLY payments.
One additional comment on Medicare. It is less "equitable" than you represent. People pay far different amounts in payroll taxes but receive the same benefit (Part A). Medicare Part B and D is subject to IRMAA, and premiums can vary by 3X (IIRC).