That is also true - national countries sabotage any reform.
Basically the EU would have to be designed anew from the get go, but lobbyists will prevent this from ever happening.
The last concrete attempt was blocked at Dutch and French referenda, not the lobbyists.
That was in 2004. Since then, basically any referendum about anything related to the EU anywhere returns a negative result, with a couple of small exceptions like a Danish defense opt-out.
So the money doesn't really go to the lobbying, more to the population-wide propaganda.
And the money is available, as it's in the interest of both the major state actors as the major corporations for the EU to weaken and dissolve.
I have many concerns about the rise of populism in Europe but the (few/very few) good things that might come out of this is that there will finally be (enough?) pressure on the EU to reform.
Despite all their talk about being pro human-rights and pro democracy in practice the voter turnout percentages for the EU elections are extremely low. As an EU citizen I almost never meet someone who's interested or who feel represented by the EU. There's, no doubt, several reasons for it but the biggest one might be that an additional abstraction layer that's cultural too far away from the average voter.