Turkey has no good PR machine like Israel. You have Israeli websites in every language, Israeli social network clans and internet bots, Israeli lobbyists in every country, Israeli sexy blonde spokeswomen, pro-Israeli commercials, pro-Israel music-and moviestars and Israeli writers in the press of every nation and they support every action of Israel and using different hardness levels (against occupation + very hard against Hamas, against settlers + very pro-Israel, anti-Palestinian + pro-democracy etc).
Every response of the Palestinians looks like antisemitic terrorism instead of legal resistance thanks to their PR-power.
Turkey lacks PR and therefore every action of Turkey against pkk terror gets no foreign public support and so we are the bad guys against the 'heroic' kurds.