Well, u can inline simple svg, but u will have to convert all the style attributes inside svg into JSX type styles attributes, class to classNames.
This can be done for smaller svg file
Here is codepen example Inline SVG,
function SvgWithXlink (props) {
return (
<svg
width="100%"
height="100%"
xmlns="http://www.w3.org/2000/svg"
xmlnsXlink="http://www.w3.org/1999/xlink"
>
<style>
{ `.classA { fill:${props.fill} }` }
</style>
<defs>
<g id="Port">
<circle style={{fill:'inherit'}} r="10"/>
</g>
</defs>
<text y="15">black</text>
<use x="70" y="10" xlinkHref="#Port" />
<text y="35">{ props.fill }</text>
<use x="70" y="30" xlinkHref="#Port" className="classA"/>
<text y="55">blue</text>
<use x="70" y="50" xlinkHref="#Port" style={{fill:'blue'}}/>
</svg>
);
}
ReactDOM.render(<SvgWithXlink fill="violet" />, document.querySelector('body > div'));
Also refer this question for more info embedding-svg-into-reactjs
Since ur svg file is very big file, it would be better to flatten it,
If u import it by flattening it, It will also be easier to edit it in future, if u want to change something, by just importing it in any svg editor.
However, if u convert it into JSX style, it cannot be imported into any SVG editor