This video is fair use under U.K copyright law which states Fair dealing for criticism, review or quotation is allowed for any type of copyright work. Fair dealing with a work for the purpose of reporting current events is allowed for any type of copyright work other than a photograph. In each of these cases, a sufficient acknowledgement will be required.
furthermore, this video is protected speech as outlined by the human right Act 1998, Article 10.

for purposes such as criticism, commenting, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.

1) This video has no negative impact on the original works (It would actually be positive for them)

2)This video is also for teaching purposes.

3)It is positively transformative in nature.

4)I only used bits and pieces of videos to get the point across where necessary.