Not at all . I feared that the thread was going to go quite far off topic and I came up with a title for a new thread with too little thought, far too early in the morning.
These issues of purity and identity aren't easy. Matters of judgement. In nature, populations do exchange genes from time to time anyway. They retain their identity either through strong selection pushing things back to where they were before, or they just get diluted out into the bigger picture. Amm (Irish or Scottish) with a bit of a contribution from elsewhere via man's actions is probably just a broader beast than what it would be naturally.
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