Surely it is about time that the "them and us" (ATCOs and ATSAs) attitude is put in the past? Air traffic is about a number of people doing different things to keep the system working. Could an ATCO really do their job as efficiently as they do without an ATSA or ATCE to help? The ATCO function is recognised as the most important one - moving aircraft about is the ultimate aim - but it would be impossible without the equipment and people to work it and maintain it.
One union to represent everyone involved in the process would surely be more preferable than everyone doing their own thing!