The past conservative governments have slowed down renewables unnecessarily. But one of the biggest successes of the world destruction lobby is to make people believe the energy transition was hard. Don’t focus too much on the little things. Look at the big picture: https://www.energy-charts.info/charts/renewable_share/chart.htm?l=en&c=DE&interval=year&legendItems=01
Displaying the Palestinian flag is not illegal in Germany. That’s misinformation.
In case you’re interested what is forbidden: https://www.mdr.de/nachrichten/deutschland/politik/pro-palaestina-demonstration-verboten-illegal-100.html