No one cares because most software developers are employed at big companies that can amortize. Even YC will probably just increase its seed instead of complain and consider it a "cost of business". This affects only marginal people. I am interested to talk with you about this if you want (feel free to reach, my email is in my profile).
Why do you speculate that number? With $1M in revenue and $1.2k in profit, there must have been $998.8k in expenses. I assume "pay yourself" was part of the $998.8k. But I don't know the answer to the other part of your question: I don't know if the $90k in taxes are included in the $998.8k expenses.
Given you’ll eventually get that full software deduction tax break back, just spread across several years, I am surprised there aren’t companies that will finance that to have the money upfront (with a fee of course :( )
But most startups get broke in several years, and codebases can't be repurposed as easily as, say, a fries-making machine, so the fee need to be very high to compensate the risk.
Bootstrapping a tech company in a post Section 174 world doesn’t even seem feasible. I can’t believe this issue isn’t being taken more seriously.