If I donate money to the EFF or Louis Rossmann for a cause I care about, that should not block him from lobbying on my behalf.
Everyone complains about professional lobbying that they don’t like. That’s hardly shocking.
I think you picked the laziest understanding of both the issue and my answer, and made my point in the process.
I'm not talking about you paying someone to represent your ideas to lawmakers, regulators, judges, etc. but about paying those people to directly enact your interests. The latter is what happens in effect, even if the incentives move from the interest groups to the key people through so many lobbying laundromats that they look completely clean and disconnected. And straight up buying laws or legal decisions is just the first problem.
The second is that as you confirm, real representation in democracy is not with your vote but your donation power. Even when your chosen lobbyist isn't buying anything straight out, just having a voice and representation takes money. The EFF or Louis Rossmann have to struggle so much to be heard is that other people pay more to be louder. If you have problems being heard for money, imagine the people hoping to be heard for free.
Poor people can only spend one vote every few years to choose representation, rich people can spend a lot of money to hijack that representation at all times and either make their voice heard above all else, or just purchase exactly what they want. Everyone praises professional lobbying as long as they are in that position to bribe.
Lobbying for money is a form of legalized corruption, almost identical in form and function to the illegal one, except it's available just to those who already have a lot of money and power, hence coming only with rewards.