I do not think german clubs can enter unless the members (supporters) vote in favor:
The 50+1 rule guards against this. In short, it means that clubs – and, by extension, the fans - hold a majority of their own voting rights. Under German Football League [DFL] rules, football clubs will not be allowed to play in the Bundesliga if commercial investors have more than a 49 percent stake. In essence, this means that private investors cannot take over clubs and potentially push through measures that prioritise profit over the wishes of supporters. The ruling simultaneously protects against reckless owners and safeguards the democratic customs of German clubs.