To be pedantic, it's 'hordes'. But however you spell it, it's a racist slur.

The problem isn't your 'hoards of Eastern European immigrants'. If workers are made redundant, there's a legal issue in that their jobs no longer exist, and they cannot legally be replaced. If British workers are, as you seem to be claiming, being made redundant in order to employ cheap foreign labour, then employers are wholly to blame for:-

a) breaking employment law
b) undercutting existing wage/salary rates by employing cheap labour.

You really need to get your head out of the Daily Heil and the Sun, and widen your reading.