[ek_hornbeck]

LePen is not a "socialist" - the Socialist Party of France is pro-Muslim and in favor of increased immigration. She is a nationalist - and the nationalists, like every viable party in Europe, favor some kind of social welfare state. You aren't going to get a US-style libertarian in Europe - so the choice is between a welfare state with national sovereignty (LePen) or a welfare state without national sovereignty (the actual French socialist party, and the Eurocrat Macron).

Macron had to make some empty promises to restrict Arab and African immigration in order to neutralize LePen, in much the same way that GOP establishmentarians promise to "secure the border" every time they run for office and then do nothing. In contrast, the central platform and program of LePen's party is restricting immigration. If she were President of France, they would already have drastic cuts to immigration. Macron, of course, being an EU internationalist, will do nothing of the sort. Macron is the Bill Clinton of French politics - willing to make some cuts to taxes and regulation perhaps, but an internationalist and a liberal at his core.

[Cronos]

What makes Le pen "far right"?

The 2017 National Front manifesto renews its commitment to a massive reduction in legal immigration. Ms Le Pen argues French citizenship should be "either inherited or merited". As for illegal immigrants, they "have no reason to stay in France, these people broke the law the minute they set foot on French soil".

But if that is a far-right stance, it is not very different from that of centre-right candidate Francois Fillon - who when first elected as the Republican candidate enjoyed a small advantage over Ms Le Pen in polls but has since been damaged by claims of improper use of state funds.
-- and that's the same policy that Macron has

Portraying herself as beyond the establishment, she has championed public services - for non-foreigners - and presented herself as a protector of workers and farmers in the face of "wild and anarchic globalisation".

and Is Le Pen really far right?

Of course, far from being far-right, Le Pen’s views on secularism are broadly within the views of the French and American republics.

As for it being far-right to ‘flirt’ with getting out of Nato, then we must describe President de Gaulle — who pulled his country out of the alliance in 1966 — and four decades’ worth of his successors (including President Mitterrand) — as far-right.

Her policies on economy etc. are socialist

Her policies on immigration are no different than Macron

The Socialist party in France (which is vile for many reasons) is also against immigration.

She is a nationalist, yes, but also a socialist

Macron

• Emmanuel Macron is tightening immigration rules
• Emmanuel Macron unveils controversial immigration crackdown in France The bill would allow authorities to detain illegal migrants for 90 days, instead of 45 now..The French Human Rights League has called for protests in Paris to denounce “governmental policies that infringe on migrants’ freedoms”.

Le Pen may have done more, I grant you that, but we don't know what she would have done in reality.