None of this to say I like the guy or even believe the allegations to be false. However, the impeachment does not seem to be carefully following due process, which is much more undermining of rule by law than whatever Trump may have done.
And the obstruction charge is quite verifiable as well.
This is very thorough, and not credibly rebutted anywhehere: https://docs.house.gov/billsthisweek/20191216/CRPT-116hrpt34...
A bunch of testimonies sounds convincing, but that depends on whom the people are and what they exactly observed. E.g. why would the ambassador to the UK know what Trump said to Ukraine? I personally am still not getting a solid feeling from all this.
You'd really want to go read and review some of this. There are some decent summaries like
https://www.washingtonpost.com/opinions/2019/12/10/case-impe...
This is no 'conviction'. He has been impeached, and that's forever, as with Clinton. More likely than not, he will not be removed from office.
No one really knows what the political consequences are, but the people running the investigation felt compelled to act since what he was doing represents a clear and present threat to free and fair elections.
However, as the article says, the Dems are rushing the impeachment process, which as you say will most likely not remove Trump from office (nor imprison). So, I really don't understand what is the point of this whole thing. How does Trump's behavior present a threat to free and fair elections, and how does this impeachment stop the threat?
Trump may find out Biden's son is doing illegal activities, or that Russia wasn't as meddlesome as supposed, and while that may influence the election, it is unclear to me how learning such information is in itself a bad thing for our system of government, i.e. a threat to free and fair elections.
And the very implication of the articles of impeachment, that Trump could gain something of value from Ukraine, has the implication that what Trump is seeking may actually be correct. In which case, Trump's requests certainly should be followed through by the Ukraine minister.
This whole thing makes less and less sense the more I dig into it, and I understand even more why all the news articles are so light on details.