A very first step could be to to brutally expose every politician who voted for such shittily designed laws.
Not doing that is a civic duty that I expect from every politician who wants to be considered to be more trustworthy than a child molester who has relapsed several times.
Nope, you need something more systemic than that. Every incumbent politician has voted for shitty laws because if you don't vote for the omnibus full of shitty laws when your party is in the majority and they need your vote then you become a pariah and then your constituents vote you out because pariahs can't accomplish any of the other things they want. And fresh faces wouldn't inherently change the incentives there.
You need something like, ban omnibus bills with a single subject matter rule. Replace first-past-the-post with score voting to dissolve the two-party system. Add new checks and balances so that someone with a better structural incentive to reject bad laws is in a position to veto them, like the US Senate used to be before the 17th amendment.
Or in the EU the structural problems will be different and you may need something different, but you still need something or the status quo tomorrow will be what it was yesterday.
Not doing that is a civic duty that I expect from every politician who wants to be considered to be more trustworthy than a child molester who has relapsed several times.