It's how the free market works. Entrepreneurship.
You've just stated my point, right after saying "your point doesn't make sense". You misunderstood my point.
We call this a "market opportunity".
Of course you're justified. Of course it's their responsibility. Letting that be an excuse to not do more hinders progress.
Your line of argument is based on rationalizing reasons why you shouldn't even think of becoming the viable alternative. What you should be doing is listing all the reasons why you personally can't make your own company and forge favourable relations with other companies to deliver the service that's in demand. There's plenty to put on that list.