We did accept the faults of our side long time ago. All Cyprus and Greek governments condemn the coup and the actions of EOKA-B and we accepted all other mistakes of the past.
What was the main mistake of G/C side in the past do you think? Especially between 1963-1974, what was the mistake or mistakes? Let me tell you some of the mistakes that I know.
1- Regarding T/Cs as mere minority and trying to get rid of the priviliges provided in the Republic of Cyprus (biggest mistake).
2- Financially and socially put T/Cs under immense pressure, so they immigrate to other countries.
3- Exclude T/Cs from the government as much as possible so Republic of Cyprus can be a Hellenic republic.
4- In some extreme cases, kill T/Cs or force them to leave from their villages. Especially during 1963, 1967, and 1974, there were various incidents where T/Cs were either killed or forced to flee their homes.
And the list goes on. I can also make a list of mistakes made by T/Cs, but that's not the issue here.
Now, out of these mistakes, can you sincerely tell me that your side completely acknowledged these mistakes, and they promised never to repeat them? The answer is no.
The biggest mistake of all (mistake 1) is still as fresh as in 1960s. Even in this forum, I heard many G/Cs complaining about priviliges provided to T/Cs in Republic of Cyprus, let alone Annan plan. Many G/Cs still see T/Cs as mere minority, and they try to give examples from other minorities in other countries with no regard to history and politics in and around Cyprus.
The second mistake that I listed is in effect today as well. You complain a lot about "occupation" and "invasion" but you're not the one living under "occupation". Social and economic embargos in the north affect T/Cs immensely, and they serve the same purpose that the economic and social pressure applied by your side in 1960s.
Even the third mistake that I listed in in effect. I know you'll say "you can come back to your positions in Republic of Cyprus" knowing that we cannot. What I would expect from you is to at least be a little bit uncomfortable by the fact that so-called bicommunal Republic of Cyprus has not been bicommunal for 40 years now, and stop telling the whole world that what you have in the south is indeed Republic of Cyprus representing both communities of the island.
It's easy to say "We accepted all our mistakes", and you can say it as much as you want but it ain't gonna matter when the reverse is in effect in practice.
On the other hand, your side not only does not accept its own mistakes, but you still celebrate the invasion! If you or another Turkish Cypriot comes to a forum and admits the mistakes of the Turkish Cypriot side it doesn’t matter much. What matters are the policies of Turkey and your leaders.
You're right. We'll never have true peace on our island, when one side celebrates a day that caused so much sufferring for the other side. However, you have to understand that even though Turkey's intervention caused so much sufferring for your side, it saved T/Cs from the miserable conditions of 1963-1974.
I can try to see 1974 from your point, and acknowledge your sufferrings (and indeed I do), but I can't convince a 80 year old T/C (whose village was occupied by G/C extremists, and whose fate was unknown until Turkish soldiers arrived) not to celebrate it.
Finally, don't act as if T/C did not learn from their mistakes. Between 1963-1974, most T/Cs supported partition and then union with Turkey. After 1974, most T/Cs supported two independent states on the island. Now with Annan plan, most T/Cs accept a federal structure because most T/C realized that Cyprus cannot remain divided. Similarly most T/Cs are more aware of their Cypriot culture than their Turkish culture, and they try to put their Cypriot character before anything else. These are some things we learned from our mistakes, I can list more.