How did the Tutsis win the civil war in Rwanda after 70% of them had been killed?

Question

I read an assertion that as high as over 70% of Rwanda's Tutsis were killed in the Rwanda genocide. Yet immediately after the genocide the anti-government Tutsi rebel group NPF successfully defeated the government and seized the power. In the aftermath many Hutus fled the country. Even more, the new Tutsi-led government succeeded to defeat DR Kongo in a bloody war.

I wonder if there was such great hatred between Hutus and Tutsis with Tutsis being a minority and 70% of this minority exterminated, how they could win the civil war and secure the power?

How this new government could be be successful to secure loyalty of the army so to defeat Kongo in the aftermath?

Why the Hutus who were the majority in the country fled it in the aftermath of the Tutsi takeover?

It seems that the Hutu government was defeated in immediate consequence of the genocide. How killing the Tutsi could harm the Hutu effort to win the civil war?

Answer 1

The Rwandan Patriotic Front (tutsi rebels) forces just won a shooting war that was quite distinct to the genocide. They'd fought with the Hutu authorities to a standstill in 1993 and fully possessed the capability (nothing to do with the civilians under hutu rule) to restart the conflict in response to the events of 1994.

If anything the genocide helped the RWF as it allowed them to take advantage of deteriorating social order in the government held parts of the country.

I found the wikipedia articles on the genocide and the rwf really helpful.