So more than one thing can be true at the same time right?

Like multiple tire suppliers end up being more costly for the teams AND that the current tire supplier is taking advantage of their monopoly situation. The two facts aren't mutually exclusive.

The fix happens the next time tire contracts are renewed. Hopefully there are sanctioning bodies that are exploring future options now.

I for one don't feel like having one tire supplier in control of every major dirt series in the country is a good thing. Especially when that supplier is a multi-billion dollar international corporation that the race tire division is a tiny piece. YRMV