Pass a vote of no confidence in the State Assembly and bring down the Kedah State Government
If you do not agree with what PAS is doing in Kedah, then resign from the government or demand that the Kedah State Assembly sits so that a vote of confidence or a vote of no confidence can be tabled and voted on in the State Assembly. You can then vote for Pakatan Harapan or Barisan Nasional once the Kedah State Government collapses and a snap state election is held like in Melaka. If PAS is kicked out for upholding nilai-nilai Islam that would be the Will of Allah and PAS will have to accept that fate.