It’s pretty clear you don’t understand what most people are saying. I assume your original response was at least partially in response to my own thoughts. A couple of things. First off, I didn’t advocate buying ‘stocks’…I said I’d put the money into one of the several funds I’m in, several of which have been at the 10%+ mark since 2008. While 2008 was certainly an issue, overall my portfolio has performed very well by and large for over 30 years now. Secondly, no one is going to take out a second mortgage to buy stocks unless they are either an expert (and confident) or an idiot…and no one is advocating doing that either. From my perspective, why would I pay off my home mortgage when I’m paying just a bit over 3% instead of invest the money in something that is getting me a minimum of 6%? How does that make sense? Third, in my case I’ve moved a large percentage of my money to funds that have guaranteed fixed rates of return (6%) because I anticipated, since Trump was elected actually, a downturn in the market. While the amount the OP is talking about falls short of the required initial investment, I could still get it into one of my other funds relatively easily.
Next up is you are comparing apples to oranges. You can’t look at the average of the entire stock market since no one invests across the board…hell, most don’t even invest across the board in fortune 500 companies which something like the DJIA is based on. Most people don’t invest in direct stocks as a large part of their portfolio unless they know what they are doing or have a financial adviser that does (in theory). We don’t know exactly what Omar was describing…could be a fund of some kind, or could be direct stock and his overall portfolio. 8-10% isn’t unreasonable or even that difficult to achieve to be honest.
In the end, if you think it’s best to invest your money into your mortgage, well, no one is stopping you. For my part, that would be a waste, especially since my house has only recently climbed back of the losses my entire region took when the housing bubble burst and I’ll be happy to just get back the money I put down plus renovation costs I’ve put in…IOW, I’ll be happy to break even. Paying off the loan would have no upsides for me and a number of downsides, even with the changes in the tax code. YMMV and all that. But you should understand what folks are saying before ragging on them and tossing out numbers that have nothing much to do with the points they are making.