When the federal government takes somewhere between 50% and 100% of the income tax payed by a state's citizens simply to give it back to the state with strings attached, that is a straightforward undermining of the state being able to act on its own.
In general, it's amazing how reliably crypto-authoritarian points are prefixed with "I don't see how". It exploits our natural advantage to assume good faith and difficulty understanding, rather than a willful ignoring of coercion.
Sure, but the GP you were replying to was focused on the risk of states losing federal funding and how that leverage is making many act differently in response.
Louisiana didn't have ant federal funding for roads for years because they were refusing to raise the drinking age from 18 to 21.