This begins to sound anti-immigrant, Stainsey, whereas I'm sure that's not what you intend.
The UK has been incredibly accepting of immigrants in recent years. But the Brexit vote suggests that the majority of the adult population want control over future immigration, both numbers and type of person coming in. Even after Brexit, approaching 6 million EU citizens have been granted the right to settled status here and no one (except perhaps the odd National Front member) has any problem with this.
Emma Raducanu is an exceptional young woman, both in sporting terms and intellectually (her A level grades are good enough to get her into Oxford or Cambridge). She can celebrate her blood ties to Romania and China (which probably play a big part on her focus, steely determination and lack of nerves on court), but she has chosen her nationality to be British.
And unless she changes her mind (and why would she, when she probably can't remember living anywhere else?), it's wrong to question her choice just because she doesn't have indigenous blood ties. That's an anti immigrant stance.
For the rest of us, we can celebrate a phenomenally talented British sportswoman, while recognising her Romanian and Chinese heritage.
I still feel knocked out by her sensational achievement last night.