You usually come across as a reasonably well informed poster Dolph, but here you are well out of your depth.
It makes a lot of sense to prioritise vulnerable victims of crime, indeed most forces are doing this even if they're not putting a press release about it. Forces still prioritize calls based on severity, that will not change. However, when it comes to minor property crimes where there isn't the resource to visit everyone in person it makes sense to prioritise vulnerable victims where the impact to that person may be higher.
Point one, the level of investigation a crime has is decided by the police or indeed whether there is any investigation at all. You have no right to have a crime automatically investigated.
Spoken like a true public servant
Does the level of investigation already depend on arbitrary factors? Is a burglary on a house where a disabled person lives more likely to get a meaningful investigation than one without?
Point two, supporting victims of crime is a legally mandated requirement under the victim code. The whole idea of victim centric investigations is core to modern policing, catching criminals isn't enough anymore.
Unless, of course, the police decide not to investigate as mentioned above...
Most events that require some sort of licence will pay for some of the associated policing costs. The level of charging is dependant on many variables but some information is here: http://www.npcc.police.uk/documents/finance/2015/NPCC Guidelines on Charging for Police Services.pdf
It's worth noting that a protest is very different from a festival. The police have a duty to facilitate protests as it's an important part of the qualified freedom of speech in the UK. The ability to be able to voice a concern should not be predicated on the ability to pay for any incidental policing at these events.
Voicing a concern does not have to require causing significant disruption and requiring a police presence. The usual motivation for this behaviour is to have a disproportionate impact compared to the numbers supporting your cause, not to 'voice a concern'.
Were the individuals involved in the 2010 student protests just voicing a concern?
https://en.m.wikipedia.org/wiki/2010_United_Kingdom_student_protests
as this scandal where they attempted to make *SAVINGS* of £700,000 (savings mind you, Jeez....) and ended up spending an extra £800,000.