That is where you are way off. If he had withheld aid on the condition of manufacturing dirt, whether such dirt existed or not, he should be impeached. That never happened, except in various posts by Democrats.
Which can be easily explained by a reasonable lack of trust in Yovanovictch. She had no interest in finding out what really went on re Burisma…she made that clear. She opposed finding out. You don’t necessarily want a representative to represent you in something that they oppose.
If there is a question of whether using Guiliani was an appropriate method, fine. Not a crime to do so. Such disagreements belong in the realm of political debates, not impeachments.