> The irony is if everyone went to an index fund and no one went it alone or with the help of a financial advisor, the markets will be compromised

I'm not sure where the irony is in that; sure, it would be bad if every dollar invested in the markets was invested that way, but no one that I've seen has ever suggested that every investment in the market should be done that way; the closest argument I've seen is that individuals whose primary focus isn't personally, actively managing investments that just want good returns for, e.g., retirement and financial security should prefer index funds.