In British history recusants were Roman Catholics who in Elizabethan England and afterwards remained loyal to ‘the Old Faith’, refusing to attend the ‘modernist’ Anglican Church (https://en.wikipedia.org/wiki/Recusancy). For them the head of the Church could never be the King or Queen of England, but only the Pope of Rome, whatever illusory external trappings of Catholicism the Church of England may have retained.
From an Orthodox viewpoint we may have some sympathy for recusants in their battle against anti-sacral, boring, reductionist Protestantism, but the fact is that they remained loyal not to Orthodoxy, but to an already corrupted form of Orthodoxy, to medieval Catholicism. Although faithfulness is a virtue, we always have to ask ‘faithfulness to what? This is also true of ‘contemporary Catholic recusants’.
By these I mean those traditionalist Catholics who reject the Second Vatican Council of the 1960s and its protestantizing tenets. We may have some sympathy for them, but to what do they remain faithful? To the anti-Orthodox tenets of pre-Vatican II Roman Catholicism? And all too often, let it be said, to a very right-wing form of politics that can have sinister echoes in 20th century Western European history.
The fact is that Orthodox in the West are the ultimate recusants. We are faithful to the genuine ‘Old Faith’, that which predates eleventh-century invented Roman Catholicism, we are faithful to the Church of God. We are faithful to God and not to man and his essentially filioquist and so secularist desire to replace the Divine, paradisiac and sinless Holy Spirit with the human, fallen and sinful unholy spirit.