Khun Thitinan is an optimist. Having removed Thaksin from the political scene (or so they thought), his opponents lost the opportunity they had then to completely reshape Thailand's political landscape. Judging by the behaviour of the "Democrats" and other groupings over the last few days, there is no evidence that the will is there for them to do so now.
The author seems to get his vocabulary mixed up: forgiving is not and never is the same thing as holding criminals accountable for their wrongdoing. He also does not get all the facts straight. The yellow shirts protested under a legal right in a democratic governance, and they did not cause any violence or broke the law. The red shirts, on the other hand, broke the law by destroying, stealing, and vandalizing public and private properties during their protests. No country can achieve democracy if criminals gain enough leverage to make a law to pardon themselves. That's immoral, wrong, undemocratic, and repugnant.