Trump was still President then - and it is certainly not unprecedented for Hail to the Chief to be played for the President of the United States. Indeed, had he attended Biden's inauguration, it would have been played for him as he entered the area - just like all other Presidents at the ceremony.
1. The military didn't provide Biden with an inaugural parade, as is tradition.
You say that, then go on to show pictures of them doing that very thing...but claim in effect that it "wasn't very much" as evidence what happened did not occur...even though it was highly publicized things would be significantly scaled down prior to the event due to COVID.
2. The military didn't give Biden a 21 gun salute as is tradition.
You say that, then go on to describe how it did in fact occur but supposedly not according to protocols to explain it away.
3. The military didn't provide Biden with Marine One or Airforce One for inauguration day.
Only the President of the United States can be on Air Force One or Marine One. You apparently don't even know what the terms Air Force One or Marine One even mean, yet offer commentary about it. Until and unless someone is officially President, he cannot travel on any apparatus with those designations.
Oh but President Trump took Marine One to Andrews Air Force Base, had the red carpet treatment etc. and then flew home on Air Force One.
Because he was still very much President of the United States when those events occurred. That is the only thing he could have taken to travel at that time.
If you watched the military parade, you would see that it did not honor Biden. It was a solemn, silent display that honored the spirit of '76 and the flag . The mil demonstrated their committment to the Constitution and their country (not Biden). The MSM had to claim it was Biden's inaugural parade, with no music and no spectators, taking up approximately 2 blocks in length and lasting 10 minutes.
Covid doesn't account for it.
2. The military held a funeral display, utilizing the very different protocols earlier in the day at Arlington because the military declined to give them a 21-gun salute, or they were smart enough not to ask for one.
The quick little video below did a nice job comparing 3 second interval 21-gun salute with the MSM's so-called version of the salute for Biden's inauguration which is performed at 9 second intervals and is used for funerals or foreign dignitaries.
Compare - YouTube (little video is 1:32 minutes in length)
I don't know why the feed says "live" because the MSM initially said Biden's inaugural "salute" was performed earlier in the day at Arlington.
Oh well, they don't have to be accurate - they just make it up as they go along and foreign money will cover the bills when America tunes them out.
Here's part of someone else's post re protocol.
Here is the source. An unmistakable direct source. This is the Army Study Guide - Personal Salutes and Honors
Now look:
The time interval between rounds in a cannon salute will be 3 seconds except as follows:
* When honors are rendered at funerals, in which case the cannon salute will be fired at 5 second intervals.
* When such interval is in conflict with prescribed safety regulations for the type of cannon employed.
* When such interval is not feasible considering condition of ammunition and materiel, number of guns available, proficiency of gun crews, atmospheric conditions, and other local limitations.
3. The military didn't provide Biden with Marine One or Airforce One for inauguration day.
The MSM bitterly complained that Biden arriving on a "private aircraft" was unprecedented, said it was a long standing tradition to give him a military jet and insisted Trump was too churlish to provide the bare minimum of civility, even in the name of presidential decorum.
That's no ordinary private aircraft. The only aircraft that lack a flag, a country or a tail number are typically clandestine CIA or other black ops.
They MSM attributes the massive troop build up in the Capitol to MAGA domestic but the military doesn't bother to protect him, at all? No military jet with escort?