Pacemakers in racing -problems /issues

I've been musing over this topic afresh after the Arc .
First off ,one can understand the point put forward in favour. Pacemakers can ( mostly) help avoid a false pace and therefore contribute to a valid result where the best horse wins.
However many side problems and issues arise.
In no particular order -here goes
* There can be more than one pacemaker , sometimes two from one stable and maybe multiple pacemakers from many stables ...no way of limiting them really.
* Pacemakers add to the size of fields causing clutter -maybe pushing genuine contenders wider in the draw and can cause obstruction  when they weaken.
* On the face of it a pacemaker is almost certainly not running on its merits .
Frequently they finish tailed off and so never had a chance of gaining their best possible position ---which is contrary to the rules of racing n'est-ce pas ?
* Pacemakers, singly or plurally, can be used / abused to create openings for a stablemate or block off an opening for a rival ...there have been accusations of such 'team tactics' before and they don't sit well with the spirit of fair competition whatever about the letter of the law.
*It frequently doesn't work. They can go too fast and not last long enough-or can be so slow they can't get the lead.


Could there be a ratings limit on runners in Gr. races -i.e. a horse more than ,say, 7lbs below a certain cut-off would not be eligible to run .
That might eliminate clear no-hopers but could lead to 'camouflaged' pacemakers instead.
I guess we're probably stuck with it -but I do feel uneasy about the whole thing.