We have more shit, that's true. And advancements in medicine have reduced child mortality and lifespans.
Worker wealth is absolutely not relative to the overall wealth in this country; that disproportionately goes to the top 1% (we're now at 1920s levels) and it's getting worse every year.
The average first home purchase age is 40 compared to the 20s then. Getting a college degree was free or cheap for many of our parents/grandparents, now it's mostly a luxury. Healthcare costs put people into permanent debt. Most people are struggling paycheck to paycheck.
Is your argument that life is all around better for the average person now because we don't tax the wealthy/let them accumulate most the wealth in this country?